﻿//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1998-2024 Glodon Company Limited.
//
// Licensed under the MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the “Software”),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////
#pragma once

// std headers

// qt headers
#include <QWidget>

// gcmp headers

// custom headers
#include "GmepGcsMainUI.h"


namespace gmepgcs
{
    class GCS_MAINUI_EXPORTS WidgetUtils
    {
    public:
        explicit WidgetUtils();
        virtual ~WidgetUtils();


    public:
        template<typename Func>
        static QWidget *GetAncestorWidget(QWidget *childWidget, Func predicate);        
        static QWidget *GetRootWidget(QWidget *childWidget);

        static bool IsInChain(QWidget *widget, QWidget *anotherWidget, QWidget *ancestorWidget, QWidget *offspringWidget);
        static bool IsInChain(QWidget *assertedOffspringWidget, QWidget *assertedAncestorWidget);

        static QPoint MapToAncestor(QWidget *widget, QWidget *ancestorWidget, const QPoint &pos);
    };
    
    template<typename Func>
    inline QWidget * WidgetUtils::GetAncestorWidget(QWidget * childWidget, Func predicate)
    {
        if (!childWidget)
        {
            return nullptr;
        }

        auto parent = childWidget->parentWidget();
        if (predicate(parent))
        {
            return parent;
        }

        return WidgetUtils::GetAncestorWidget(parent, predicate);
    }
}